Characterization of self-assembled silver nanoparticle ink based on nanoemulsion method.

ABSTRACT: A well-dispersed self-assembled silver nanoparticles (AgNPs) ink with high purity was synthesized via AgNO₃ emulsion prepared by blending an AgNO₃ aqueous solution and a liquid paraffin solution of both polyoxyethylene (20) sorbitan monooleate (Tween 80) and sorbitan monooleate (Span 80). The ink remained as an emulsion at low temperatures; however, it produced AgNPs after sintering at about 60°C and showed a high stability at nanoscale sizes (with diameters ranging 8.6-13.4 nm) and a high conductivity. During the whole procedure, Tween 80 acted as a surfactant, reductant and stabilizer. Presumably, Tween 80 underwent an autoxidation process, where a free radical of an α-carbon of ether oxygen was formed by hydrogen abstraction. The mean diameter of emulsion droplets

SUBMITTER: Hu D 

PROVIDER: S-EPMC7277254 | biostudies-literature | 2020 May

REPOSITORIES: biostudies-literature